Branchburg Weather Forecasts. Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the Branchburg area., Get the current Branchburg NJ weather forecast with barometric pressure, temperatures, wind, rain, humidity, sun and moon times, hourly forecast and live radar - all in one convenient local weather page!, Get accurate hourly forecasts for today, tonight, and tomorrow, along with 10-day daily forecasts and weather radar for Branchburg, New-Jersey with MSN Weather., Branchburg, NJ - Weather forecast from Theweather.com. Weather conditions with updates on temperature, humidity, wind speed, snow, pressure, etc. for Branchburg, New Jersey, Current weather in Township of Branchburg and forecast for today, tomorrow, and next 14 days, Hourly Local Weather Forecast, weather conditions, precipitation, dew point, humidity, wind from Weather.com and The Weather Channel.